Let init script find redis-server in CentOS 7
Let init script find redis-server in CentOS 7

The path for redis-server changed in CentOS 7. Updated the init script
template so that it can figure out where redis-server lives.

newrelic/puppet-redis,newrelic/puppet-redis,newrelic/puppet-redis,bwwhite/puppet-redis,bwwhite/puppet-redis,bwwhite/puppet-redis